University of Illinois Urbana-Champaign

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Showing 1–3 of 3 items
Thumbnail for Geology and geography of the Galena and Elizabeth Quadrangles.
Geology and geography of the Galena and Elizabeth Quadrangles.
Trowbridge, Arthur C.; Shaw, Eugene Wesley; Schockel, Bernard Henry

Thumbnail for Bibliography and index of Illinois geology through 1965
Bibliography and index of Illinois geology through 1965
William, H.B.; Simon, Jack A.; Lynch, Betty M.; Langenheim, Virginia A.

Thumbnail for Pleistocene stratigraphy of Illinois
Pleistocene stratigraphy of Illinois
Willman, Harold Bowen; Frye, John Chapman